123421411 has 4 divisors (see below), whose sum is σ = 130681512. Its totient is φ = 116161312.

The previous prime is 123421399. The next prime is 123421421. The reversal of 123421411 is 114124321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 114124321 = 23 ⋅4961927.

It is a cyclic number.

It is not a de Polignac number, because 123421411 - 2¹¹ = 123419363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123421421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3630025 + ... + 3630058.

It is an arithmetic number, because the mean of its divisors is an integer number (32670378).

Almost surely, 2^123421411 is an apocalyptic number.

123421411 is a deficient number, since it is larger than the sum of its proper divisors (7260101).

123421411 is an equidigital number, since it uses as much as digits as its factorization.

123421411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7260100.

The product of its digits is 192, while the sum is 19.

The square root of 123421411 is about 11109.5189364797. The cubic root of 123421411 is about 497.8862917328.

Adding to 123421411 its reverse (114124321), we get a palindrome (237545732).

The spelling of 123421411 in words is "one hundred twenty-three million, four hundred twenty-one thousand, four hundred eleven".